Megapterygius

Megapterygius (meaning "large wing") is an extinct genus of mosasaurine mosasaur from the Late Cretaceous Toyajo Formation (Hasegawa Muddy Sandstone Member) of Japan. The genus contains a single species, M. wakayamaensis, known from an almost complete skeleton.

Megapterygius
Temporal range: Late Cretaceous
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Clade: Mosasauria
Superfamily: Mosasauroidea
Family: Mosasauridae
Subfamily: Mosasaurinae
Genus: Megapterygius
Species:
M. wakayamaensis
Binomial name
Megapterygius wakayamaensis
Konishi et al. 2023
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